Youtube Video ID From URL - Objective C

Question

I basically have a Youtube url as an NSString, but I need to extract the video id that is displayed in the url. I found many tutorials on how to do this in php or and other

Answer 1

You don't even need regexes. The following works regardless of the length of the video ID and its position within the URL:

NSString *vID = nil;
NSString *url = @"http://www.youtube.com/watch?v=cAcqdjLCN7s";

NSString *query = [url componentsSeparatedByString:@"?"][1];
NSArray *pairs = [query componentsSeparatedByString:@"&"];
for (NSString *pair in pairs) {
    NSArray *kv = [pair componentsSeparatedByString:@"="];
    if ([kv[0] isEqualToString:@"v"]) {
        vID = kv[1];
        break;
    }
}

NSLog(@"%@", vID);